LTC2493
32
2493fd
LinearTechnology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900 ● FAX: (408) 434-0507 ● www.linear.com
LINEAR TECHNOLOGY CORPORATION 2006
LT 0710 REV D PRINTED IN USA
relaTeD parTs
Typical applicaTion
PART NUMBER
DESCRIPTION
COMMENTS
LT1236A-5
Precision Bandgap Reference, 5V
0.05% Max Initial Accuracy, 5ppm/°C Drift
LT1460
Micropower Series Reference
0.075% Max Initial Accuracy, 10ppm/°C Max Drift
LT1790
Micropower SOT-23 Low Dropout Reference Family
0.05% Max Initial Accuracy, 10ppm/°C Max Drift
LTC2400
24-Bit, No Latency ∑ ADC in SO-8
0.3ppm Noise, 4ppm INL, 10ppm Total Unadjusted Error, 200A
LTC2410
24-Bit, No Latency ∑ ADC with Differential Inputs
0.8VRMS Noise, 2ppm INL
LTC2440
24-Bit, High Speed, Low Noise ∑ ADC
3.5kHz Output Rate, 200nV Noise, 24.6 ENOBs
LTC2442
24-Bit, High Speed, 2-/4-Channel ∑ ADC with Integrated
Amplifier
8kHz Output Rate, 200nV Noise, Simultaneous 50Hz/60Hz
Rejection
LTC2449
24-Bit, High Speed, 8-/16-Channel ∑ ADC
8kHz Output Rate, 200nV Noise, Simultaneous 50Hz/60Hz
Rejection
LTC2480/LTC2482/
LTC2484
16-Bit/24-Bit ∑ ADCs with Easy Drive Inputs, 600nV Noise,
Programmable Gain, and Temperature Sensor
Pin Compatible 16-Bit and 24-Bit Versions
LTC2481/LTC2483/
LTC2485
16-Bit/24-Bit ∑ ADCs with Easy Drive Inputs, 600nV Noise,
I2C Interface, Programmable Gain, and Temperature Sensor
Pin Compatible 16-Bit and 24-Bit Versions
LTC2486/LTC2488/
LTC2492
16-Bit/24-Bit 2-/4-Channel ∑ ADC with Easy Drive Inputs, SPI
Interface, Programmable Gain, and Temperature Sensor
Pin-Compatible 16-Bit and 24-Bit Versions
LTC2487
16-Bit 2-/4-Channel ∑ ADC with Easy Drive Inputs and
I2C Interface, Temperature Sensor
Pin-Compatible with LTC2493/LTC2489
LTC2489
16-Bit 2-/4-Channel ∑ ADC with Easy Drive Inputs
Pin-Compatible with LTC2487/LTC2493
LTC2495/LTC2497/
LTC2499
16-Bit/24-Bit 8-/16-Channel ∑ ADC with Easy Drive Inputs and
I2C Interface, Programmable Gain, and Temperature Sensor
Pin-Compatible 16-Bit and 24-Bit Versions
LTC2496/LTC2498
16-Bit 8-/16-Channel ∑ ADC with Easy Drive Inputs and
SPI Interface
Pin-Compatible with LTC2498/LTC2449
Figure 37. Easy Drive ADCs Simplify Measurement of High Impedance Sensors
VCC
fO
SCL
SDA
GND
= EXTERNAL OSCILLATOR
= INTERNAL OSCILLATOR
LTC2493
2-WIRE
I2C INTERFACE
9-PIN SELECTABLE
ADDRESSES
2493 F37
CA0
12
1
REF+
13
REF–
14
CH0
8
CH1
9
CH2
10
CH3
11
COM
7
4
2
6
3
5
5V
0.1F
10F
CA1
5V
IIN+ = 0
IIN– = 0
R1
51.1k
R4
51.1k
C4
0.1F
C3
0.1F
R3
10k TO 100k
–
+
102k
5V
LT1494
0.1F
1k
10k TO 100k
1.7k